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Diffstat (limited to 'til.md')
| -rw-r--r-- | til.md | 109 |
1 files changed, 101 insertions, 8 deletions
@@ -4,14 +4,23 @@ title: "TIL: Useful code snippets" lang: en ref: til --- -Useful code snippets[^source]. -## Git custom work-tree checkout +### Bash variables + +```shell +$ which git +/run/current-system/sw/bin/git +$ readlink $(!!) +readlink $(which git) +/nix/store/5bgr1xpm4m0r72h9049jbbhagxdyrnyb-git-2.28.0/bin/git +``` + +### Git custom work-tree checkout ```shell git --work-tree=/path/to/outputdir checkout HEAD -- . ``` -## Search in Git +### Search in Git Search log messages @@ -24,23 +33,23 @@ Search content in git history ```shell git grep 'Build 0051' $(git rev-list --all) ``` -## Find broken symlinks +### Find broken symlinks ```shell find . -xtype l ``` -## Kernel version +### Kernel version ```shell uname -r ``` -## Sending email through the command line +### Sending email through the command line ```shell mail eu@euandre.org -s "This is the subject" -aFrom:eu@euandre.org <<< 'This is the message' ``` -## Git bisecting +### Git bisecting Automatic Git bisect @@ -49,5 +58,89 @@ git bisect start e1fd0a817d192c5a5df72dd7422e36558fa78e46 HEAD git bisect run sh -c 'git clean -ffdx && ./bootstrap && ./configure --localstatedir=/var && make && git checkout' ``` +### UNIX searching commands + +```shell +$ which gcc +$ locate signal.h +$ updatedb # add to cron? +``` + +### Guix contributing + +```shell +$ cd ~/dev/guix/guix/ +$ git clean -ffdx +$ guix environment guix # guix environment guix --ad-hoc help2man git strace +$ ./bootstrap +$ ./configure --localstatedir=/var +$ make +$ ./pre-inst-env guix describe +$ ./pre-inst-env guix show $PKG +$ ./pre-inst-env guix build $PKG +$ ./pre-inst-env guix lint $PKG +``` + +v2: +```shell +guix environment --pure guix --ad-hoc help2man git strace -- sh -c "./bootstrap && ./configure --localstatedir=/var && make" +``` + +v3: +```shell +$ guix environment --pure guix --ad-hoc help2man git stract +$ ./bootstrap +$ ./configure --localstatedir=/var +$ make +$ ./pre-inst-env guix build $PKG +$ ./pre-inst-env guix lint $PKG +$ ./pre-inst-env guix refresh --list-dependent $PKG +$ ./pre-inst-env guix build --rounds=2 $PKG +$ ./etc/ident-code.el $PKG +``` + +### git mail patches + +Check the [guix-devel thread][0] on +named "Re: [External] Re: New outreachy participant introduction". + +[0]: https://lists.gnu.org/archive/html/guix-devel/2019-10/msg00093.html + +### Flutter Dart `patchelf` + +```shell +patchelf --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) /home/andreh/dev/misc/flutter/bin/cache/dart-sdk/bin/dart +``` + +### builds.sr.ht environment variables + +[https://builds.sr.ht/~euandreh/job/68005](https://builds.sr.ht/~euandreh/job/68005). + +### `C-c M-m` in message-mode for creating `cut here` sections + +Or run the `scissors` function. + +### Software Recomendations StackExchange exists + +[https://softwarerecs.stackexchange.com/](https://softwarerecs.stackexchange.com/). + +### GPG key search + +```shell +gpg --search-key eu@euandre.org +``` + +### Git Annex wanted + +```shell +git annex wanted . 'exclude=Banshee/old-musics/* and exclude=attic/videos/* and exclude=Photos/*' +``` + +### Useful keybindings +- `SPC v` for region selection +- `SPC j s` to split sexp +- `mod-shift-space` reset layout + +## Acknowledgements -[^source]: Shameless rip-off of [Anna e só](https://til.flourishing.stream/) +Shameless rip-off of [Anna e só](https://til.flourishing.stream/). |